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endocrine system

(Encyclopedia)endocrine system ĕnˈdəkrĭn [key], body control system composed of a group of glands that maintain a stable internal environment by producing chemical regulatory substances called hormones. The end...

Ngugi wa Thiong'o

(Encyclopedia)Ngugi wa Thiong'o ĕngo͞oˈgē wä tē-ŏngˈgō [key] or James Ngugi, 1938–, Kenyan writer, acclaimed as East Africa's foremost novelist. He studied at universities in Uganda and England. His firs...

estrogen

(Encyclopedia)CE5 estrogen ĕsˈtrəjən [key], any one of a group of hormones synthesized by the reproductive organs and adrenal glands in females and, in lesser quantities, in males. The estrogens cause the th...

hypersensitivity

(Encyclopedia)hypersensitivity, heightened response in a body tissue to an antigen or foreign substance. The body normally responds to an antigen by producing specific antibodies against it. The antibodies impart i...

Chabrol, Claude

(Encyclopedia)Chabrol, Claude klōd shäbrōlˈ [key], 1930–2010, French filmmaker, b. Paris, attended Univ. of Paris. One of the creators of the French “new wave” cinema of the 1950s and 60s, he and such oth...

space medicine

(Encyclopedia)space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the extreme conditions ...

nosebleed

(Encyclopedia)nosebleed, nasal hemorrhage occurring as the result of local injury or disturbance. Most nosebleeds are not serious and occur when one of the small veins of the septum (the partition between the nostr...

López Velarde, Ramón

(Encyclopedia)López Velarde, Ramón rämōnˈ lōˈpās vālärˈᵺā [key], 1888–1921, Mexican poet. One of the major poets of Mexico, he deeply influenced the work of later poets, notably Xavier Villaurrutia....

acetaminophen

(Encyclopedia)acetaminophen əsētˌəmĭnˈəfĭn [key], an analgesic and fever-reducing medicine. It is an active ingredient in many over-the-counter medicines, including Tylenol and Midol. Introduced in the earl...

kosher

(Encyclopedia)kosher [Heb.,=proper, i.e., fit for use], in Judaism, term used in rabbinic literature to mean what is ritually correct, but most widely applied to food that is in accordance with dietary laws based o...